Figure 2
From: Potential benefits of using radioactive ion beams for range margin reduction in carbon ion therapy
Treatment planning outcome for the adenoid cystic carcinoma patients. (a) Example of the double-field 11C dose distribution and planning contours. Black – tumor CTV; magenta – eyes, white – optic nerves, turquise – brainstem. Color bar represents the dose distribution (red color corresponds to the prescribed CTV dose of 3 Gy(RBE)). (b) Patient-by-patient treatment planning outcome in terms of exceeding the dosimetric constraint for the optic nerves (2.46 Gy(RBE) to 0.03 cm3 of the organ). Each point corresponds to the percentage of treatment uncertainty scenarios when the constraint is met. Orange circles represent 12C plans (3 mm setup margin and 3.5% range margin), blue triangles – 11C plans (3 mm setup only).
